Please note that the URLs to EFS-Web and Private PAIR have changed. 

If you have bookmarks to the old URLs, please update them. 

1.      EFS-Web for Registered eFilers:

https://efs.uspto.gov/efile/myportal/efs-registered    

2.      EFS-Web for Unregistered eFilers:

https://efs.uspto.gov/efile/portal/efs-unregistered  

3.      EFS-Web Portal homepage:

https://efs.uspto.gov/efile/portal/home

4.      Private PAIR:

https://ppair.uspto.gov/epatent/myportal/privatepair

5.      Private PAIR Portal homepage:

https://ppair.uspto.gov/epatent/portal/home